Considered as the oldest known art work in the Philippines,the Angono Petroglyphs are dated back to 3000BC. The drawings - 127 identified - are carved out from a rock shelter dwelling in the town of Binangonan - some 40 minute drive from Quezon City - in the Province of Rizal. Though highly regarded as a National Cultural Treasure, and one of the four highly endangered sites in the Philippines, this curiosity is not so known even to townsmen. The site isn't big - probably at a length of 50 meters long. Though authentic, there have been hearsays that the materials used in carving the petroglyphs that were found onsite are largely missing already within the National Museum's walls; thus, this might give a hard time in bolstering further the right to claim for a WHS title. Due to limited funds given in the maintenance of the site, the National Museum's satellite office, which is in charge in supervising the site - charges a reasonable fee of 10.00 PhP (.25$)